Silicone earbuds have three sizes, compatible with most earphones, large size is about 0.51inch/13mm, medium size is about 0.47inch/12mm, small size is about 0.43inch/11mm.
There are 16 pairs of silicone ear tips, 8 pairs x small, 4 pairs x large, 4 pairs x medium, 7 colors, three sizes, and the diverse choices can meet different needs.